This physics problem tests your understanding of fundamental physical laws and their applications. The step-by-step solution below breaks down the problem using relevant equations and physical reasoning.
ScanSolve AI Answer
Here are the solutions to your questions: a) The peak voltage. Step 1: Determine the vertical deflection from the trace. From the figure, the peak of the waveform is 2 divisions (cm) from the center line. Step 2: Calculate the peak voltage using the y-sensitivity. Given y-sensitivity = 10 V/cm. V_peak = vertical deflection × y-sensitivity V_peak = 2 cm × 10 V/cm V_peak = 20 V The peak voltage is 20 V. b) The frequency of the alternating signal. Step 1: Determine the period of one complete cycle from the trace. From the figure, one complete cycle spans 5 divisions (cm) horizontally. Step 2: Calculate the period using the time base setting. Given time base = 0.2 ms/cm. T = horizontal length of one cycle × time base T = 5 cm × 0.2 ms/cm T = 1 ms Convert the period to seconds: T = 1 × 10^-3 s Step 3: Calculate the frequency. f = (1)/(T) f = (1)/(1 × 10^-3) s f = 1000 Hz The frequency of the alternating signal is 1000 Hz. c) State two reasons why a C.R.O. is advantageous to use as a voltmeter over ordinary meters. • A CRO has a very high input impedance, meaning it draws negligible current from the circuit under test, thus not altering the circuit's operating conditions. • It can display the waveform of the voltage, allowing for the measurement of peak voltage, peak-to-peak voltage, period, and frequency, which ordinary voltmeters cannot do. (It can also measure very high frequencies and has a fast response time). d) List two uses of the graphite used in the T.V. set. • As an Aquadag coating on the inner surface of the Cathode Ray Tube (CRT) to collect secondary electrons and maintain a uniform electric field. • As a conductive path or shield within the CRT to prevent unwanted electrostatic interference. Last free one today — make it count tomorrow, or type /upgrade for unlimited.